Hydroquinone CAS#: 123-31-9; ChemWhat Code: 114385

Names & Identifiers

Product Name Hydroquinone
Synonyms Hydroquinone, 99.5%, 99.5%;Hydrochinone 0;Hydroquinone ReagentPlus(R), >=99.5%;HYDROQUINONE GPR RECTAPUR;PHOTO GRADE Hydroquinone;HYDROQUINONE PHOTO GRADE 99%;p-Benzediel
p-Dihydroxybenzene
Hydroquinol
1,4-Benzenediol
1,4-Dihydroxybenzene
Quinol;Hydroquinone, p.a.
CAS Registry Number 123-31-9
Molecular Formula C6H6O2
Molecular Weight 110.11
EINECS 204-617-8
Other Registry Numbers
More Identifiers on PubChem IUPA Names, InChI, InChI Key, Canonical SMILES, etc.
Hydroquinone CAS#: 123-31-9

Chemical & Physical Properties

Melting point  172-175 °C(lit.)
Boiling Point  285 °C(lit.)
Density  1.32
vapor Density  3.81 (vs air)
vapor pressure  1 mm Hg ( 132 °C)
Flash Point  165 °C
Storage  Refrigerator
Solubulity  H2O: 50 mg/mL, clear
pka 10.35(at 20℃)
form  Needle-Like Crystals or Crystalline Powder
Color  White to off-white
Water Solubility  70 g/L (20 ºC)
Sensitive  Air & Light Sensitive
Merck  14,4808
BRN  605970
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, strong bases, oxygen, ferric salts. Light and air-sensitive. Discolours in air.
More Properties From PubChem Topological Polar Surface Area, Monoisotopic Mass, etc.
NIST Chemistry Reference Hydroquinone(123-31-9)
EPA Substance Registry System 1,4-Benzenediol(123-31-9)

Safety & Hazards(Codes & Phrases)

Hazard Codes  Xn,N
R Phrase  22-40-41-43-50-68-R68-R50-R43-R41-R40-R22
S Phrase  26-36/37/39-61-S61-S36/37/39-S26
RIDADR  2662
WGK Germany  3
RTECS  MX3500000
TSCA  Yes
Storage Class  9
Packing Group  III
HS Code  29072210
Hazardous Substances Data 123-31-9(Hazardous Substances Data)
More Safety & Hazards From PubChem Signal, GHS Hazard Statements, Precautionary Statement Codes, etc.

Literature

Literature on PubChem Synthesis References, Metabolite References, etc.

Patents

Patents on PubChem Related Patents Of This Product

Transportation, Storage & Usage

Transportation No Information
Storage No Information
Usage No Information

Spectral Properties

No Information

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